import pymysql
db = pymysql.connect(host='localhost', user='root', password='123456', port=3306, database='test')
cursor = db.cursor()

sql = """
INSERT INTO
  EMPLOYEE (FIRST_NAME, LAST_NAME, AGE, SEX, INCOME)
VALUES
  ('Mac', 'Su', 20, 'M', 5000)
"""
try:
    cursor.execute(sql)
    db.commit()
except:
    db.rollback()
db.close()